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Application of the Point Focusing X-Ray Monochromator to the Study of Low Angle Diffraction


Danielson, Warren Evald (1952) Application of the Point Focusing X-Ray Monochromator to the Study of Low Angle Diffraction. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/7A7G-7081.


The geometry of the point focusing monochromator is described, and the instrument's uses in connection with low angle diffraction studies are outlined. A careful determination of the particle size of latex spheres by studies of the associated low angle diffraction pattern is made, and an experiment to determine the sensitivity of this particle size to external pressure is described. The results of an experiment in which the monochromator is used to obtain important information on the existence and nature of the collagen molecule are given. A technique for finding the size of particles whose shape is reasonably approximated by two spheroids is given, and the technique is applied to the size determination of bacteriophage type T-4. Improvements in the instrument are discussed and several suggestions for further applications are mentioned.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:(Physics and Mathematics)
Degree Grantor:California Institute of Technology
Division:Physics, Mathematics and Astronomy
Major Option:Physics
Minor Option:Mathematics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • DuMond, Jesse William Monroe
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1952
Funding AgencyGrant Number
Office of Naval Research (ONR)UNSPECIFIED
Atomic Energy CommissionUNSPECIFIED
Record Number:CaltechTHESIS:09262017-162449067
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:10459
Deposited By: Benjamin Perez
Deposited On:27 Sep 2017 14:45
Last Modified:10 May 2023 23:30

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